on T h e S c o o p Wa t e r s E n h a n c e d m an L ieb B y B onnie chardt S & D a v id T he beverage industry has made a killing with bottled water. Thirty years ago, we drank virtually none. In 2003, per capita consumption hit 47 litres. Now the industry has contrived a new way to boost sales: “water beverages” enhanced with vitamins, herbs, antioxidants, and other ingredients. Sales of fortified water more than doubled between 2005 and 2006—to around $14 million. As a press release from Coca-Cola (which markets Dasani water) put it in May 2007, vitamin-enhanced water provides “the highest retailer revenue per case in the overall water category.” Next up: vitamin-infused beverages for dogs. What? And let cats, ­hamsters, and guinea pigs drink from the tap? For the planet’s sake, that’s what we should all do. Information compiled by Namita Davis in Toronto. Essentially Worthless “Enhanced water developed to ­hydrate and replenish the body with essential vitamins and minerals,” says the label of Dasani Essentials Kiwi Strawberry Flavour Enhanced Water with Vitamins, Guarana + Ginseng Flavours. Tip: Any water will “hydrate” your body. (Hydrate means to add water.) Dasani doesn’t hydrate any better than tap water. In fact, Dasani is processed tap water. Despite the name, the vitamins and minerals that Dasani Essentials adds to its Kiwi Strawberry (niacin, B-6, B-12, and chromium) are no more essential than any others. (Neither is the poorly tested artificial sweetener ­acesulfame-potassium that Dasani adds.) You’re better off getting a more com- The Antioxidant Rag “Antioxidants help protect the body from harmful free radicals that can cause cell damage,” promises the label of Aquafina plus +. Protect the body from cell damage? Sounds like water spiked with two anti­ oxidants (vitamins C and E) and four other vita­mins (B-6, B-12, niacin, and panto­thenic acid) can help prevent cancer. In fact, studies have yet to find any clear link between antioxidants and cancer or any other disease—other than the slightly higher risk of dying Photos: © Kitch Bain/fotolia.com (top). CSPI (all others). in people who were given high doses of vitamin E (400 IU a day or more) or the slightly higher risk of lung cancer in smokers who were given high doses of beta carotene (33,000 to 50,000 IU a day). Vitamin C doesn’t seem to raise or lower either risk. As for the other vitamins, Aquafina probably adds them because it can. They’re harmless at low doses, and they make the water look good. Speaking of looking good, weight watchers may want to think twice about the 100 calories in each 591 mL bottle of Aquafina plus +. That’s less than a can of pop, of course, but you’ll need a half hour’s brisk walk to burn them off. plete set from a multivitamin than from whatever these waters happen to toss in (see cover story). Dasani has one other marketing ploy for its Essentials Kiwi Strawberry: guarana and ginseng flavours. The word “flavours” is Health Canada’s way of warning you that there ain’t much guarana or ginseng in the bottle. But Dasani may figure that at least some hasty shoppers will assume that the water has enough herbs to do something. If Dasani had more of both, would it even matter? More guarana might. It’s a plant native to the Amazon that contains a seed rich in caffeine. As for ginseng, six small studies by one group of British researchers produced inconsistent results on tests of alertness, reaction time, and mental arithmetic.1 Healthy college students given a single dose of 200 mg of ginseng sometimes did better—and sometimes did worse—than when they got a placebo. And they scored better on some tests after taking 400 mg of ginseng, but not after taking 600 mg. So what ginseng does at what dose—and what that may mean for a 60-year-old brain—is anyone’s guess. But it’s no guess what ginseng and guarana flavours do. They add to Dasani’s bottom line. 1 J. 14 N U T R I T I O N A C T I O N H E A LT H L E T T E R ■ J U N E 2 0 0 8 Psychopharmacol. 20: 771, 2006. HITTING THE BOTTLES Fibre Water Clearly Caffeine What makes Clearly Canadian If you believe the label, the fibre in Dasani Essen- daily Energy so energizing? tials Pomegranate Blackberry Flavour Enhanced Water with Vitamins, Antioxidant + Fibre can help It’s spiked with caffeine “restore and bring balance to your body.” (80 mg per bottle), just like Vital How does Coca-Cola get fibre—the stuff that’s in Lifestyle Water Energize (60 mg) bran and whole grains—into its water? and VH20 Vitamins Plus Power It’s not that kind of fibre. It’s digestion-resistant Boost (50 mg). That’s about what you’d get from 5 to 8 oz. of Tim maltodextrin, which is made by breaking long Hortons coffee. chains of carbohydrate from starch into smaller chains that can’t be broken up (digested) by the And it’s why Clearly Canadian’s label says, “helps temporarily body. According to the government, that makes it restore mental alertness or wakeful- a fibre. Does maltodextrin work like the intact fibre in foods like ness when experiencing fatigue or drowsiness.” whole grains, beans, and vegetables? No one knows. (Vital Energize’s label says the same.) In fact, it It’s a soluble fibre, so it might help curb blood sugar and blood could help if you’re on the road and don’t want to cholesterol. But it won’t keep you regular. If that’s what Dasani stop for coffee or cola. means by “bringing balance to your body,” you’re out of luck. What about Clearly Canadian daily Energy’s (And the questionable artificial sweetener acesulfame-potassium “taurine + vitamins”? in Dasani could throw your body off balance.) Taurine is an amino acid that supposedly Can water with maltodextrin help you lose weight by making boosts physical performance during exercise. Yet when 17 young men and women took 20 grams you feel more full than a glass of ordinary water? It’s anyone’s of taurine a day for seven days, they weren’t able guess. to do any more push-ups than they could before Some shoppers may be impressed by Dasani’s vitamins taurine.1 (niacin, B-6, B-12, and E), which the label calls “medicinal they started taking ingredients.” Don’t be. As long as people believe that it’s only So the 1 gram of taurine in each bottle of Clearly Canadian daily Energy is clearly there the vitamins in a food that matter, companies will keep selling just for show...just like the water’s vitamins. us inexpensive-to-make foods with a dusting of vitamins. And 1 Mil. nothing’s cheaper than water. Med. 3: 312, 2007. Much Too Much To stand out in the crowd, bottled waters contain a researchers figure out whether 1,500 mg a day or (mostly random) sprinkling of vitamins. But some more promotes prostate cancer, as several studies companies go overboard on some. suggest. Take calcium. Many women run short on the Another problem: vitamin A from retinol mineral even if they take a multivitamin. So they palmitate or retinol acetate. Studies suggest that could use the 235 mg of calcium in a 591 mL more than roughly 4,000 IU a day may raise the bottle of Propel Calcium or the 225 mg in half a risk of hip fractures. (1 litre) bottle of Sanfaustino The Calcium Water. Yet VH20 Vitamins Plus sprinkles it in like pixie (Propel contains the poorly tested artificial dust: 1,126 IU in every bottle of Dragon Fruit Total sweetener acesulfame-potassium, so it’s not the Power, 1,250 IU in every bottle of Pom Grape Revi- best calcium supplement.) But men are a different story. They shouldn’t reach for a bottle with roughly 200 mg of calcium any time they’re thirsty until talize and Tropical Citrus Power Boost, and 2,500 IU in every bottle of Orange Complete Essentials. And the labels on the 591 mL bottles recommend that you “Drink one bottle 2X per day.” No thanks. N U T R I T I O N A C T I O N H E A LT H L E T T E R ■ J U N E 2 0 0 8 15